package org.xiji.interpreter;

/**
 * 实现符号抽象类
 */
public abstract class Symbols implements Calculation{


    /**
     * 左边  右边
     *
     */
    protected Calculation left;
    protected Calculation right;

    public Symbols( Calculation left, Calculation right) {
        this.left = left;

        this.right = right;
    }

    @Override
    public abstract double calculate() ;
}
